SHAttered

We have broken SHA-1 in practice. This industry cryptographic hash function standard is used for digital signatures and file integrity verification, and protects a wide spectrum of digital assets, including credit card transactions, electronic documents, open-source software repositories and software updates. It is now practically possible to craft two colliding PDF files and obtain a SHA-1 digita

[tmatsuu]

おっ

[Kanasansoft]

SHA-1の衝突 shattered について。

[banana-umai]

“This industry cryptographic hash function standard is used for digital signatures and file integrity verification, and protects a wide spectrum of digital assets, including credit card transactions, electronic documents, open-source software repositories and software updates. It is now practicall

[tetsutalow]

ついにSHA-1の耐衝突性突破のデモ登場。CWIとGoogleのチームが同一ハッシュ値を持つ2つのPDFを作って見せた。理論的にはMark Stevensが2013年EUROCRYPTで示した2^61に基づいてるから力業だけど、インパクトは大きい。